“[Trump’s] performance has improved significantly,” Rubio said, according to The Palm Beach Post.

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In a separate interview, Rubio said the GOP should avoid a divisive battle for the nomination.

“Look, let’s not divide the party,” he told Miami radio host Jimmy Cefalo, according to The Tampa Bay Times.

“I do think it's valid to argue to delegates: 'Look, let’s not divide the party. You have someone here who has all these votes, very close to get 1,237, let’s not ignore the will of the people or they’re going to be angry.' And delegates may decide that on that reason they decide to vote for Donald Trump. But if they don’t, it’s not illegitimate in any way,” Rubio said.